Glass feeder refractory implement chuck



K. E. PEILER GLASS FEEDER REERACTORY IMPLEMENT CHUCK Oct. 6, 1953 original Filed April 21; 1949 ATTORNEYS Patented Oct. 6, 1953 GLASS FEEDER REFRACTORY IMPLEMENT CHUCK Karl E. Peiler,'West Hartford, Conn., assignor to Emhart Manufacturing Company, a. corporation of Delaware original application April 21, 1949, serial No. 88,869. Divided and this application April 17, 1952, serial No. 282,887

Claims. (Cl. 49--55) This application is a division of my co-pending application, Serial No. 88,869, filed April 21, 1949, for an improvement in glass feeding apparatus. It is filed for the purpose of claiming the invention disclosed therein directed to a novel means for replaceably holding a vertically reciprocating refractory implement which depends in a glass feeding container in working relation to an outlet passage in the bottom of the container.

An object of the invention is to provide, in a chuck or supporting holder for the refractory implement referred to, a novel arrangement of implement upper end clamping or gripping members releasably and resiliently maintained in rm gripping relation to the upper end portion of the implement.

A further object of the invention is to provide a novel chuck or holder for gripping the upper end of the implement referred to to support the implement for vertical reciprocation without the use of a holding pin or the like extending into a drilled hole or socket in the upper end portion of the refractory implement as heretofore has been customary.

Other objects and advantages of the invention hereinafter will be pointed out or will be apparent from the following description of a practical embodiment of such invention as illustrated in the accompanying drawings, in which:

Fig. 1 is a partial view, showing feeder bowl outlet structure and glass homogenizing and feed controlling means in transverse vertical section and in elevation means, including the novel chuck or implement holder of the present invention for f mounting and vertically reciprocating a Vertical refractory implement or plunger; and

Fig. 2 is a fragmentary relatively enlarged perspective of the implement chuck or holder.

A feed bowl or container, a fragmentary bottom portion of which is shown in Fig. 1 and is designated l, has an outlet or feed passage 4 in its bottom.

A rotary member 4t, supported by a rotor chuck 55, depends into the bowl or container I in axial alignment with the outlet passage.

A refractory tube di is suspended from an annular chuck i4?, mounted in a seat |55 in an end portion |57 of a tube supporting arm |58. The tube depends into the feed bowl or container within the rotary outer member 4B and also in axial alignment with the outlet passage.

Within the tube 41 and with its lower end in working relation to the outlet passage is a vertical refractory implement or plunger 48, the

suspended from a chuck which, as best seen in Fig. 2, comprises a generally cylindrical lower portion comprising a main clamping part |3| and a segmental movable cooperative clamping part |82. These two clamping parts together embrace and grip the upper end portion 48a of the plunger when the movable part |82 is pressed by forks |33 of a lower end portion |84 of a clamp lever 85 against the plunger upper Vend portion in the main clamping part |8| To retain the clamping parts |8| and |82 in cooperative relation while Apern'iitting relative opening and closing movements thereof, these parts may be provided at their adjacent side edges with matching lugs o1' ears |86 and |87, respectively. One of these, as the lug or ear |81 on the clamping part |8I, carries a guide pin |88 slidable in an opening |89 in the cooperative ear or lug.

The main clamping part |8| is suspended by an integral vertical shank |90, 'which may be substantially U-shaped or semi-cylindrical in cross-section. The clamp lever is pivoted at |9| intermediately to the shank |90 so that the lever may swing within limits about a transversely extending horizontal aXisand the upper end portion of the lever, which is of reduced size and block-like form as indicated at $92, projects upwardly through a radial notch |93 in a flat circular head |94 formed on the upper end of the suspension shank |90. A thrust bolt lii is threaded through the upper end portion of the Vlever to bear against an upstanding central boss |96 on the head |94. The head ld rests in a counter-bored seat I9?, Fig. l, formed as the upper part of a chuck accommodating opening |98 dened by an annular outer end portion |09 of a plunger carrying, overhanging arm 200. The arm 2&0 is supported and actuated to reciprocate the plunger by means shown in Fig. 1 but which need not be described herein.

A hold-down lever 20|, Fig. 2, has a transverse slot 202 in an end portion thereof through which extends a pin 203 carried by a pair of upstanding ears 204 on the ring-shaped end portion |00Y of the arm 200. This hold-down lever 20| has a depending boss 205 bearing on the boss |06 on the head |94 when the lever 20| has been swung downwardly about the axis of the pin 203 until a vertically notched opposite end portion 20B of the lever rests upon the ring member |99 at the side of the latter opposite the ears 204. A shouldered fastening bolt 201' extends downwardly Y through the notched end of the lever 20| into the ring member |99 to maintain the lever 20| in its active, holding position. When the bolt- 25li has been disengaged from the ring member, the lever 26| .may be ,swung `upwardly and slid longitudinally for 'a limited distance about the pin 233 so as to be out of the way of the chuck and the suspended refractory plunger 48. These then may be lifted through the ring member |99 and for this purpose a hoist?.(ntshiirnnaybe attached in a conventional or any suitable manner.

When the clamp lever;|85'is`nfitscpratiie position so that its forks -|83 pressthe movable clamping section 32 firmly against the upper end of the plunger d8 in tl-e-mainelampingpart las, the action will be uncanny-resilient or spring-like to assure a strong clamping action continuously on the plunger throughoutenormal temperature changes and attendant expansion Yand-contraction.of the -partsof the chuck andof the suspendedrefractory plunger. The plunger thus is prevented from slipping out ofthe chuck --withoutthe use of a holding pin orthelike eX- ten'ding into a drilled hole or socket in the plunger as heretofore has beencustomary.

-I claim: n1. In .glass feeding apparatus, -a supporting Aarm having-an -end'portion formed to provide a vertically open-frame Ihaving an upwardly facing.t

V,from said-head, a main clamping .part integral Withthe lower end of the shank, a movable cooperative Yclamping partmounted on the main clamping part foropening and closing movements relative thereto, said clamping partsl being formed assegments of-a cylinder so asto be adapted-to embrace Aand grip between them a Acylindrical upper end portion of-an elongate vertical refractory amplement Vso that the implement will de- `pendintoaglass container withthelower-end of the Yimplement positioned -in -co-operative -rela- -tionto a verticaloutlet.passagein the bottom of the container, a verticaliydisposed lever pivoted intermediately on said shank to swing about `a horizontal axis, the lower end of said'leverbeing forked-and :bearing -against theouter surface of the movable clamping part, said head Vof the :chuck-.having an Yaperture Vin a .portion thereof .andthe upper end portionof said lever lextending loosely through said aperturd-said'head alsov hav- `ing an -upstanding central boss thereon, anda .thrust `boit threaded through the upper end portionfof the lever and Ibearing'againstsaid boss to adjust the pressure of `the forked lowerendofthe Vlever on the movable clamping part, said lever being suiiciently resilient to vassure a -strong clamping action by the clamping par-ts continuously on the refractory -implement throughout :normal temperature changes in service.

4 2. In glass feeding apparatus, a supporting arm having an end portion formed to provide a Vertically open frame having an upwardly facing counterbored seat, a chuck comprising a head iittingremovably in said frame so as to be sup- .fpcr'ted by asa-id `:"seat, a vertical shank depending from saidheadja clamp carriedby said shank and comprising a plurality of openable and clos- "able' grippers for gripping between them the Eliperend portionifof an elongate refractory implement so that said implement may be supported .therebyto depend into a glass container having' averticallfoutlet passage in its bottom to positionthelower end of the implement in co- Operative relation to the said outlet passage, and spring *means-"operatively associated with said v'gri-p'persi to maintain them in firm gripping relatinto the'up'perend portion of said implement.

`3. @he combination defined by claim 2 wherein the upper end portion,` of said refractory implement .is cylindrical and said clamp comprises a mai-ngripper'formed as an integral downward extension of said shank and having a contact faceof Aarcuate cross-sectional configuration t- Yting ,partly around'and smoothly against said gripper under a strong springpressure.

4. Thecombination defined by claim 2 and, in addition, releasable means on said frame engageable With the head of said chuck to retain it in place in saidlframe, said chuck and the refractory implement suspended therefrom being movable as a unit upwardly clear of the frame for replacement `of the plunger when said releasable means .has been'disengaged from said head.

z5. The-combination 'defined by claim 2 and, in

addition, a Ychuck hold-down `lever pivotally References Cited in the vfile lof this patent UNITED STATES PATENTS Number Name Date 1,761,372 Stenhous'e June S, 1930 "1,344,847 GOOCI- Feb. 9, 1932 11584367 'lge et al. 0017.25, v1932 

